Adjustable spindle foe



Oct. 13, 1925- H. W. WILSON ADJUSTABLE SPINDLE FOR MERCHANT MILLS Filed'Nov. 24; 1920 Patented Oct. 13, 1925.

UNITED STATES PATENT O F -v HENRY W. WILSON, or DULUTH," MINNESOTA.-

ADJUSTABLE SPINDLE FOR MERCHANT MILLS.

Application filed November 24,1920. Serial No. 426,173.

. is aspecification.

This invention relates to a new and improved spindle for rolling millsand which is particularlyadapted for use in merchant mills rollingdeformed sections.

In the use of merchant mills rolling bars of various irregular ordeformed cross sections such as are largely used for concretereinforcement, it is necessary that the coact ing rolls have certainnotches or grooves cut.

in them in order to impress corresponding projections or enlargementsupon the bar which is being rolled. Obviously in the use of rolls ofthis character it is highly essential that the notches or grooves uponthe two rolls maintain a predetermined rela tion since otherwise theindentations or projections upon the rolled bar will not be properlylocated relative to each other. This relative location is essentialsince otherwise the bar would have portions of varying cross sectionwith consequent weak points which would render it inefficient forconcrete reinforcement or similar use where the bar takes up a strain.

It has been the practice heretofore in the use of such mills whencoacting rolls get out of relative adjustment, that is when one rollgets ahead or behind the other, to insert a shim in the coupling toadvance one of the rolls until adjustment is again secured. Thispractice is crude and is incapable of securing an accurate adjustment.Moreover the shim is readily subject to dislocation.

It is an object of the present invention to provide means wherebycoacting mill rolls may be quickly and accurately adjusted as torelative position and whereby the rolls will be effectively maintainedin adjusted relation. It is a further object to provide means foraccomplishing this desired result comprising a composite spindle adaptedto drive one of the rolls, the spindle being formed of two laterallydivided pieces which may be positively adjusted in rotary relation. Itis a further object to provide a device of this character which iscomprised of but few and simple parts which may be readily and quicklyinstalled and adjusted and which is comparatively inexpensive tomanufacture. -Other and further objects will appear as the descriptionproceeds.

More specifically my invention comprises a two part roll drivingspindle, the parts being provided with coacting radial flanges and boltsconnecting the two flanges,.the bolts having a slotted engagement withone of the flanges. I further provide means whereby the flanges may bepositively rotated relative to each other and whereby such rotation maybe accomplished with a line degree of relative adjustment.

I haveillustrated a preferred form of my invention in the accompanyingdrawings in which Figure 1 is a side view of my composite spindle; and,

Figure 2 is a section taken on line 2-2 of Figure 1.

The left hand member of the spindle comprises the wobbler 3 and theshank 4, the latter carrying the radial flange 5. This flange is cut,away at 6, 7, and 8 to form the adjusting screw carrying lugs 9 and 10.These lugs carry the screws 11 and 12 respectively which extendsubstantially tangential in direction, their outer ends being providedwith square portions whereby they may be readily adjusted by means of awrench. The

' rounded ends of the screws bear against the axial lug 13 carried bythe flange 14: which is a portion of the right hand member 15 of thespindle. This member 15 is provided with the usual wobbler 16. Theflange 14 is provided with holes adapted to receive the bolts 17 thesebolts extending through the slotted openings 18 in the flange 5 of theleft member of the spindle. The interengaging faces of the spindlemembers are provided with axially located registering recesses 19 and 20adapted to receive the dowel pin 21 which serves to maintain the twomembers in axial alignment.

In the use of my adjustable spindle the two parts would normally bemaintained in the position in which they are shown in the figures.Should it be desired to advance one portion relative to the other, thenuts upon the bolts 17 are loosened and the screws 11 and 12 areadjusted so that the location of the lug 13 is varied relative to thelugs 9 and 10. This adjustment necessitates the loosening of one screw11 or 12 and the equivalent tightening of the other screw. By means ofthese two screws slow motion is given through which a very accurateadjustment may be had. When the correct adjustment is secured, the nutsare tightened upon the bolts 17 which then serve to clamp the twoflanges together and to positively maintain them in-adjusted position.The arcuate slots 18 may be made of any desired arc and the play betweenthe lugs 9 and 10 and the lug 13 may be increased but the amount ofadjustment nor- :mally required can be taken care of by partssubstantially as shown in the drawing.

My construction, as has been seen, is extremely simple and yet, due tothe combination of slow motion adjusting screws, and

clamping bolts, :1 fine degree of adjustment can be easily secured andpositively maintained. The device is susceptible of easy adjustmentwithout the use of special tools or parts.

While I have described more or less precisely the details ofconstruction of my invention, I do not wish to be understood as limitingmyself thereto, as I contemplate changes in form and the proportion ofparts and substitution of equivalents as circumstances may suggest orrender expedient,

"without departing from the spirit of my in- -by'certainofsaid membersadapted to coact with other of said ;members to vary the rotaryadjustment of the portions.

2. A composite spindle adapted for use in rolling mills, the spindlecomprising a plurality of portions, the portions having interrelatedmembers, a plurality of set screws carried by certain of said membersadapted to coact withopposed :facesof other of .said members to vary andmaintain the rotary adjustment of the portions.

3. A composite spindle adapted for use in rolling mills, the spindlecomprising a plurality of portions, the portions having interrelatedmembers, a plurality of set screws carried by certain of said membersadapted to coact with opposed faces of other :of said members to varyand maintain the rotary adjustment of the" portions, and means adaptedto adjustably maintain the two members in axial juxtaposition.

4. A composite spindle adapted for use in rolling mills, the spindlecomprising a pair of radially divide-d portions having juxtaposedfianges, a portion of the first flange being cut away, the second flangecarrying a lug interposed in the cut away portion of the first flange,and set screws carried by the first flange adapted to coact with the lugon the second flange and to vary and maintain the rotary adjustment ofthe two spindle portions.

5. A composite spindle adapted for use in rolling mills, the spindlecomprising a air of radially divided portions having uxtaposed flanges,a portion of the firstflange being cut away, the second flange carryinga lug interposed in the cut away portion of the first flange, set screwscarried by the first flange adapted to coact with the lug on the secondflange and to vary and maintain the rotary adjustmentof the two spindleportions, and axially extending bolts connecting the two flanges andadapted to maintain them in juxtaposition.

Signed at Duluth, Minnes t this 15th,.

day of Nov, 1920.

HENRY W. WILSON.

